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According to the IRS, 2012 tax returns showed an average refund of $2824 with a standard deviation of $2622. Assume that 2012 tax return amounts are normally distributed. Based on this information (and information in Questions 7-13), generate excel output in the given space on the Tax sheet in this workbook to answer the following questions. Each orange numerical answer cell below MUST reference Excel output cells in the Tax sheet. Question 7 Find the probability a randomly selected 2012 tax return showed an amount no less than $2,621 and at most $6,213. 0.4328 Question 8 Find the probability a randomly selected 2012 tax return showed an amount greater than $3,066 0.4632 Question 9 Find the probability a randomly selected 2012 tax return showed an amount less than or equal to $4,264 or greater than $5,045. 0.9070 Question 10Find the probability a randomly selected 2012 tax return showed an amount less than $580. 0.1960 Question 11A Question 11B The probability is 0.22 that a randomly selected 2012 tax return showed between what two amounts equidistant from the mean? Find the lower endpoint using Excel. Use this lower endpoint and some math to find the upper endpoint. (Remember thelabel.) lower: upper Question 12 The probability is 0.95 that a randomly selected 2012 tax return showed at least what amount? (Remember the label.) Question 13 The probability is 0.08 that a randomly selected 2012 tax return showed no more than what amount? (Remember the label.)

According to the IRS, 2012 tax returns showed an average refund of $2824 with a standard deviation of $2622. Assume that 2012 tax return amounts are normally distributed. Based on this information (and information in Questions 7-13), generate excel output in the given space on the Tax sheet in this workbook to answer the following questions. Each orange numerical answer cell below MUST reference Excel output cells in the Tax sheet. Question 7 Find the probability a randomly selected 2012 tax return showed an amount no less than $2,621 and at most $6,213. 0.4328 Question 8 Find the probability a randomly selected 2012 tax return showed an amount greater than $3,066 0.4632 Question 9 Find the probability a randomly selected 2012 tax return showed an amount less than or equal to $4,264 or greater than $5,045. 0.9070 Question 10Find the probability a randomly selected 2012 tax return showed an amount less than $580. 0.1960 Question 11A Question 11B The probability is 0.22 that a randomly selected 2012 tax return showed between what two amounts equidistant from the mean? Find the lower endpoint using Excel. Use this lower endpoint and some math to find the upper endpoint. (Remember thelabel.) lower: upper Question 12 The probability is 0.95 that a randomly selected 2012 tax return showed at least what amount? (Remember the label.) Question 13 The probability is 0.08 that a randomly selected 2012 tax return showed no more than what amount? (Remember the label.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Need help on questions 11-13 please.

According to the IRS, 2012 tax returns showed an average refund of $2824 with a standard deviation of $2622. Assume that 2012 tax return amounts are normally distributed. Based on this information (and information in Questions 7-13), generate excel output in the given space on the Tax sheet in this workbook to answer the following questions. Each orange numerical answer cell below MUST reference Excel output cells in the Tax sheet. Question 7 Find the probability a randomly selected 2012 tax return showed an amount no less than $2,621 and at most $6,213. 0.4328 Question 8 Find the probability a randomly selected 2012 tax return showed an amount greater than $3,066 0.4632 Question 9 Find the probability a randomly selected 2012 tax return showed an amount less than or equal to $4,264 or greater than $5,045. 0.9070 Question 10Find the probability a randomly selected 2012 tax return showed an amount less than $580. 0.1960 Question 11A Question 11B The probability is 0.22 that a randomly selected 2012 tax return showed between what two amounts equidistant from the mean? Find the lower endpoint using Excel. Use this lower endpoint and some math to find the upper endpoint. (Remember thelabel.) lower: upper Question 12 The probability is 0.95 that a randomly selected 2012 tax return showed at least what amount? (Remember the label.) Question 13 The probability is 0.08 that a randomly selected 2012 tax return showed no more than what amount? (Remember the label.)
Transcribed Image Text:According to the IRS, 2012 tax returns showed an average refund of $2824 with a standard deviation of $2622. Assume that 2012 tax return amounts are normally distributed. Based on this information (and information in Questions 7-13), generate excel output in the given space on the Tax sheet in this workbook to answer the following questions. Each orange numerical answer cell below MUST reference Excel output cells in the Tax sheet. Question 7 Find the probability a randomly selected 2012 tax return showed an amount no less than $2,621 and at most $6,213. 0.4328 Question 8 Find the probability a randomly selected 2012 tax return showed an amount greater than $3,066 0.4632 Question 9 Find the probability a randomly selected 2012 tax return showed an amount less than or equal to $4,264 or greater than $5,045. 0.9070 Question 10Find the probability a randomly selected 2012 tax return showed an amount less than $580. 0.1960 Question 11A Question 11B The probability is 0.22 that a randomly selected 2012 tax return showed between what two amounts equidistant from the mean? Find the lower endpoint using Excel. Use this lower endpoint and some math to find the upper endpoint. (Remember thelabel.) lower: upper Question 12 The probability is 0.95 that a randomly selected 2012 tax return showed at least what amount? (Remember the label.) Question 13 The probability is 0.08 that a randomly selected 2012 tax return showed no more than what amount? (Remember the label.)
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